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Understanding Your Data Model › Using Fields › Defining Function Fields as REF Fields › Valid System name

Valid System name

The following table contains the default characteristics of the VNM field.

Field Type Attribute

Shipped Default Value

Default Override

Field Details Override

Device Field Override

Implementation name

System data type

External length

Internal length

Decimal places

xxVN

Alpha

10

as external

-

-

N

Y

-

-

Y

N

Y

-

-

N

N

N

-

-

LHS text (Column headings)

RHS text

Field name

Name

N

Y

Y

Y

Y

Y

Keyboard shift

Allow lowercase

Mandatory fill

Valid system name

Mod10/11 check

XAI

N

N

Y

-

N

Y

Y

Y

-

Y

Y

Y

Y

-

N

N

N

N

-

Check condition

Translate values

*NONE

-

N

-

Y

-

Y

-

Field exit option

Edit codes: Input

Output

Report

N

-

-

-

Y

-

-

-

N

-

-

-

Y

-

-

-

The VNM type is used for fields that represent system entities including objects, formats, and field names. A valid system name must

This type is used for defining fields that must conform to the operating system's naming convention. For DDS, it is implemented by using the CHECK(VN) keyword.

Examples of VNM fields include: